Wireguard server and IPv6

Installing and Using OpenWrt
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Hi, my ISP is provide IPv4 addresses behind CGNAT, however since several days it seems I am receiving IPv6 address as well. I have setup WG server on the router, and DDNS via dynv6.com, however when I add that in the WG peer ( android phone) I get "error unable to resolve hostname xxx.dynv6.com"
Can I do access WG via the IPV6 address provided by the vendor or do I need to pay for the public IPv4 address?
Thank you
Kind regards
K.

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  • ipleak.net - check IPv6 connectivity from the client.
  • dns.google - confirm that DDNS works correctly.
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Thanks. I forgot to mention that my mobile provider do not use Ipv6, so the first test is a failure - no IPv6 address.
Second test about the dns:{ "Status": 0 /* NOERROR */, "TC": false, "RD": true, "RA": true, "AD": false, "CD": false, "Question": [ { "name": "xxxxx.dns.army.", "type": 1 /* A */ } ], "Comment": "Response from

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Switch the "RR Type" to "AAAA".

Some mobile providers require to explicitly enable IPv6 as an additional service.
Otherwise you need buy a public IPv4 or a VPS.

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I will end up paying for IPv4, as I am trying to use their IPTV at another place. I have VPS but not from my ISP. Anyway a nice learning about IPv6. Thanks again

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Any VPS (in the sense of IPv6 prefix available and being able to load kernel modules/ your own kernel) can be a mediator/ host for wireguard, regardless of the ISP.

--
I'm getting along with cgNAT and a (semi-)static IPv6 prefix for the last three years now, it generally works - unless you enter an IPv4-only WLAN (mobile ISPs offer IPv6 these days).

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Interesting... Let me give you more information if you can help with the setup.
I have ISP ( Bulgaria) at home providing IPTV only in their network via Android box. My idea is to install wireguard on the android box and connect to wireguard server. I have Oracle VCN free Tier with German IPv4 address ( now I read that I may be able to get IPv6 as well - never thought about it as I didn't had IPV6 address on my ISP) running WG server. My mobile provider ( just for the test if WG is working, doesn't provide IPv6), my second ISP2 provider where I want to move the Android box doesn't provide IPv6 either. I am not sure how can I overcome this situation without public IPv4..
I am not sure how can I get IP address even

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Set up a WireGuard server on the VPS:

Configure other involved devices as WireGuard clients.
Then you can use client-to-client connectivity.

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You could also try a "cloud" VPN like Zerotier or Tailscale. These use the company's server to negotiate a connection where there is CGNAT at both sides and then attempt to convert to a direct link once "holes" have been made through the NAT. That is usually successful, then you have shorter ping time than a two-hop link through a VPS. If it is not successful the company server will continue to relay packets for you.

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Thanks guys, but my problem is that I need to receive IP from my ISP1. I have WG on Oracle , but it changes my IP address to the Oracle location. I have zerotier, but I get IP address from ISP2 or my mobile network.
I was hoping that with ISP1 providing me with IPv6, I can get WG server on my router and access it from my ISP2 which doesn't provide me with IPv6.
@slh mentioned it is possible trough VPS- well I do not get how?
I can probably get ISP1 IPv6 address for the Oracle VPS, when I set it up as a client, but what's next?
How ISP2 will get IP from ISP1's address trough Oracle VPs, when ISP2 doesn't support IPv6.
Thanks for you advises.

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This is no longer necessary since you have a VPS.

No, configure VPS as a VPN server.

Run VPN client on other devices.

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